Machine for cutting rags and other material



(No Model.)

G. W. D. UPTON.

MACHINE FOR GUTTING BAGS AND OTHER MATERIAL.

No. 351,080. Patented Oct. 19, 1886..

WITNESSES INVENTOR ATTORNEY UNITED STATES PATENT OFFICE.

GEORGE V. D. UPTON, OF SPRINGFIELD, MASSACHUSETTS.

MACHINE FOR CUTTING RAGS AND OTHER MATERIAL.

SPECIFICATION forming part of Letters Patent No. 351,080, dated October 19, 1886.

Serial No. 187,500. (No model.)

To all whom it may concern.-

Be it known that l, GEORGE W. D. UPTON, a. citizen of the United States, residing in Springfield, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Machines for Cutting Rags and other Material for Use as Paper- Stock, of which the following is a specification, reference being had to the accompanying drawings and letters of reference marked thereon.

Heretofore various appliances for cutting rags and other like material for paper-stock have been devised, in all of which, however, the stock is required to be subjected to two separate operations in order to out the same to the desired uniform size-that is, the rags have first been subjected to a stripping cut, which reduced them to strips, and they have then been subjected to a cross-cutting operation, which separated the strips into short pieces.

The object of my invention is to provide a means of cutting the stock to the desired size at one operation, the Whole being performed at the same time and with the same appliance; and to that end my invention consists in the construction and arrangement of a cylinder having blades or knives which operate to cut the rags in such manner that they are reduced to small pieces at one and the same operation; and, further, my invention consists in the construction and arrangement as herein set forth, whereby the advantages of my invention are attained.

In the accompanying drawings, in which like letters of reference indicate like parts, Figure 1 is a View of my improved cutting-roll having cutting-blades b secured thereto. Fig. 2 is a longitudinal sectional view of a machine having my cutting appliance therein, and adapted for cutting the stock. Fig. 7 illus trates the form of the edge of the blade shown upon the roll in Fig. 1; and Figs. 3, 4, 5, 6, and 8 are edge views of various forms of blade modifications of the form shown on the roll.

The construction and operation will be readily understood on reference to the drawings, in which 0 represents a frame of any convenient shape adapted to support the cutting-roll a and parts operating therewith.

(1 represents a fixed piece of metal, against which the edges of the blades or parts Z operate with a shearing cut, separating the stock into pieces approximating the size and shape of the spaces between the cutting-blades upon the roll a; or, instead of a fixed cutting-body, (l, a revolving roll may be arranged for the blades to out against. In this case the roll against which the blades operate should travel at a slower speed than the cutting-cylinder. The blades or cutting or shearing parts upon the roll might of course be made integral therewith; but I prefer to construct them separatcly, as shown.

A series of guide-springs, 0, project over the feed-apron f and assist to prevent the material escaping from the cutting edges. Other means to guide the material may be applied, if desired. This in some instances should be determined by the character of the stock to be operated upon.

The feed-apron f travels in the direction indicated by the arrow and carries the material to a point where it is grasped between the roll a and guide-springs e, and carried to, the cutting-point, where they are separated into small pieces, as before stated. The guide-springs e operate not only as guides, but also prevent bunching of the stock, which is more liable to occurwith a cutting-roll of my construction on some kinds of stock than with a cuttingroll having blades extending from end to end.

I prefer to make the frame-work of the roll in one piece of cast-iron, having the openings as shown in the drawings, a shaft, being passed through the frame, as shown, forming bearings at each end. The blades b are fastened to the roll-frame with screws, bolts, or other convenient means.

I am aware that a somewhat similarly arranged feed has heretofore been applied to a rag-cutting machine, and I make no claim to the same, except in combination with my cutting or shearing mechanism, the operation of the guide spring being somewhat different with my construction than with those heretofore made, as before pointed out.

It will readily be seen that very many modifications may be made in the construction and application without departing from my invention, and I do not limit myself to the exact construction illustrated.

I am well aware that pulp-grinders hav heretofore been made having a cylinder inclosed within a case and provided withknives upon its periphery, as shown in United States Letters Patent Nos. 34,581 and 53,598. In each of these the blades or grinding parts are nearly parallel with the axis of the cylinder and operate to grind the pulp, while with my device one of the efi'ects to be avoided is grinding, and I cut the material between a series of short blades or cutting-edges and a fixed knife or a cutting-bed.

I am also aware, as heretofore stated, that a revolving blade cutting against afixed knife has heretofore been used to cut paper-stock; but with'such device the stock is'cut into strips requiring a second cutting operation to complete the necessary cutting treatment.

Having therefore described my invention, what -I claim, and'desire to secure by Letters Patent, is-

1. In a rag-cutting machine, a cutting-roll, a, having a series'of cutting-blades, b, in combination with a fixed blade or body to out against, substantially as shown.

2. In a rag-cutting machine, a cutting or shearing cylinder or roll' composed of a framework, a, having a central shaft, h, and having shearing or cutting parts I), substantially as shown.

3. In a rag-cutting machine, a cylinder, (1

having knives I), guide-springs a fixed knife or cutting-bed, d, and a means to feed the rags, all in combination, substantially as shown.

4. In a machine for treating paper-stock, a

series of removable blades, b, arranged upon a'revolving cylinder and adapted to cut the stock into small pieces, in combination with a v cylinder, a, having cutting-blades b, in combi- U nation with abody to cut against,whereby the material is cut into small pieces, (instead of into strips, as heretofore,) substantially as set forth.

GEORGE XV. D. UPTON Witnesses:

ALLEN WEBsTER,

: FRED BROWN. 

